Futaba R7306SB FASSTest 2.4GHz Receiver
Thank you for purchasing a Futaba R7306SB FASSTest-2.4GHz compatible receiver. The R7306SB receiver features bi-directional communication with a FASSTest Futaba transmitter using the S.BUS2 port. Using the S.BUS2 port an impressive array of telemetry sensors may be utilized. It also includes both standard PWM output ports (1-6ch) and S.BUS output ports. The R7306SB can also be switched to the Dual Rx Link System. This system can ensure safety by mounting two FASSTest receivers on one aircraft.
FASSTest12CH Telemetry OFF Mode
This mode is forcibly turning off telemetry transmission to prevent collision of telemetry signals from the receiver to the transmitter when using dual RX link mode in FASSTest12ch mode.
- Turn on the receiver. [Transmitter is always OFF]
- Press and hold the SW for 5 seconds or more.
- Release the switch when the indicator blinks ORANGE once.
- Press the switch once more to return to flashing green once.
- Press and hold the SW.
- Release SW when the indicator blinks ORANGE twice.
- Turn off the receiver power.
Status: After restarting, the LINK LED lights up Orange Solid. [Telemetry OFF mode: ON]
How to Dual Rx Link
Install two receivers on the aircraft as shown in the connection example. Link the two receivers using the dual receiver feature of the transmitter. For systems without dual receiver capability, link each receiver in turn.
Transmitter in link mode: For FASSTest 16ch Select dual mode and link primary. Follow the link procedure for each receiver manual.
Transmitter in link mode: For FASSTest 16ch Select dual mode and link secondary.
Connection example:
- Receiver A communicates with two receivers.
- Receiver B communicates with two receivers.
Dual Rx Link System: By installing two receivers in one aircraft, if one receiver becomes unable to communicate, the other receiver can be operated.
How to change to Dual RX Link mode:
- Turn on the receiver. [Transmitter is always OFF]
- Press and hold the SW for 5 seconds or more.
- When the LED of the receiver changes from blinking red to blinking orange, SW is released.
- The LED should now blink red two times in the patterns described in the chart below.
- Each press of the SW advances the receiver to the next mode.
- When you reach the mode that you wish to operate in, press and hold the SW for more than 2 seconds. When LED blinks in orange, it is the completion of a mode change, SW is released.
- Cycle the receiver power off and back on again after changing the Channel mode.
Note: In Dual RX link mode, the SB2/RX port is for reception only, so use CH mode B, C, D, F, G, H mode for S.BUS output and S.BUS2 input/output.
Telemetry for FASSTest12CH
In FASSTest12CH mode, after linking R7306SB in telemetry OFF mode, link the receiver you want telemetry to. (The transmitter will show the telemetry of the last linked transmitter.)
- #1 First Link: R7306SB (Telemetry OFF mode)
- #2 Second Link: R7306SB (Telemetry display)
Note: Telemetry display of second-linked receiver. Telemetry OFF first-linked receiver.
About telemetry system
When using the dual receiver function, the telemetry function of the main receiver can be used. Sub-receiver telemetry function is not available.
R7306SB Specifications
- FASSTest-2.4 GHz system (18 ch/12 ch mode)
- S.BUS2 and S.BUS port and 6 Channels for conventional system receiver
- Dual antenna diversity
- Size: 0.89 x 1.5 x 0.48 in. (22.5 x 38.3 x 12.2 mm)
- Weight: 0.38 oz. (10.7 g)
- Power requirement: 3.7 V to 7.4 V (Voltage range: 3.5 V to 8.4 V)
- Battery F/S Voltage: FASSTest --- It sets up with a transmitter, FASST --- 3.8 V
Note: Be sure that when using ESCs regulated output the capacity of the ESC must meet your usage condition. Never use dry batteries for the power supply of the R7306SB as they may cause difficulties.
Antenna installation precaution
- Do not cut or bundle the receiver antenna wire.
- The antennas must be mounted in such a way to assure they are strain relieved.
- Keep the antenna as far away from the motor, ESC and other noise sources as you possibly can.
- Do not touch the antenna to metal, carbon, or other conductive material.
- Be sure that the two antennas are placed at 90 degrees to each other.
Antenna installation for carbon fuselage: You must leave 30 mm at the tip of the antenna fully exposed. The exposed antenna should be secured so that it cannot move around or back inside of your aircraft.
Usage precaution
- Analog servos cannot be used with the R7306SB in the FASSTest 12CH mode.
WARNING: Changes or modification not approved by the party responsible for compliance could void the user's authority to operate the equipment. The R7306SB receiver should be protected from vibration by foam rubber, Velcro, or similar mounting methods. Protect from moisture. Keep away from conductive materials to avoid short circuits.
Link precaution
- Do not perform the linking procedure while the motor's main power is connected or the engine is operating as it may result in serious injury.
- When the linking is complete, please cycle the receiver power and ensure the receiver is properly linked to the transmitter.
- Power on the system in this order: Transmitter first, followed by the receiver.
- If the R7306SB receiver was previously linked to another transmitter, make sure that transmitter is not operating while linking the receiver to the new transmitter.
Connector precaution
DANGER: Do not insert either a switch or battery in this manner. It will short-circuit, if it connected in this way. A short circuit across the battery terminals may cause abnormal heating, fire and burns.
Note: Do not connect an S.BUS servo / gyro to S.BUS2 connector.
LED Indication
LINK LED
- Status: No signal reception
- LED: Red Solid
- Status: Receiving signals
- LED: Green Solid
- Status: Waiting for link
- LED: Red Blink (3 second)
- Status: Unrecoverable error (EEPROM, etc.)
- LED: Red Green Alternate blink
MODE LED
- Status: S.BUS signal not received
- LED: Red Solid
- Status: S.BUS signal reception from external receiver (also received by external receiver)
- LED: Green Solid
In Dual RX Link Mode
- Status: External receiver is receiving error or not connected.
- LED: Red Green Alternate blink
- Status: S.BUS signal not received
- LED: Red Blink (3 second)
- Status: S.BUS signal reception from external receiver (also received by external receiver)
- LED: Red Green Alternate blink
In FASSTest12CH Telemetry OFF Mode
- Status: Start
- LED: Orange Solid
Channel Modes
The R7306SB is capable of changing its channel allocations as described in the table below. This is especially important when using the receiver in a dual receiver mode. See your transmitter operation manual for complete details on operating in the dual receiver mode.
Channel Output connector | Mode A | Mode B | Mode C | Mode D | Mode E | Mode F | Mode G | Mode H |
---|---|---|---|---|---|---|---|---|
SB2/1 | 1 | 1 | 1 | S.BUS2 | 7 | 7 | 7 | 13 |
SB2/2 | 2 | 2 | 2 | S.BUS2 | 8 | 8 | 8 | 14 |
3 | 3 | 3 | 3 | 3 | 9 | 9 | 9 | 15 |
SB2/4 | 4 | 4 | 4 | S.BUS2 | 10 | 10 | 10 | 16 |
SB/5 | S.BUS | S.BUS | S.BUS | S.BUS | 11 | 11 | S.BUS | S.BUS |
RX/SB2/6 | S.BUS2 | S.BUS2 | S.BUS2 | S.BUS2 | 12 | S.BUS2 | S.BUS2 | S.BUS2 |
LED blink | GREEN | GREEN | GREEN | RED 1 | RED 2 | RED 3 | RED 4 | RED 5 |
Default |
Note: Refer to separate table for port change function. The figure is an example of default setting mode B.
S.BUS2
S.BUS2 extends S.BUS and supports bidirectional communication. Sensors are connected to the S.BUS2 port.
Compliance Information Statement (for U.S.A.)
This device, trade name Futaba Corporation, model number R7306SB, complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
CAUTION: To assure continued FCC compliance, any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
The responsible party of this device compliance is: FUTABA Corporation of America 2681 Wall Triana Hwy Huntsville, AL 35824, U.S.A. Phone: 1-256-461-9399 FAX: 1-256-461-1059 E-mail: service@futabaUSA.com
Compliance Information Statement (for Canada)
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
French: Cet appareil radio est conforme au CNR-210 d'Industrie Canada. L'utilisation de ce dispositif est autorisée seulement aux deux conditions suivantes: (1) il ne doit pas produire de brouillage, et (2) l'utilisateur du dispositif doit être prêt à accepter tout brouillage radioélectrique reçu, même si ce brouillage est susceptible de compromettre le fonctionnement du dispositif. Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps.
Declaration of Conformity (for EU)
Hereby, Futaba Corporation declares that the radio equipment type is R7306SB in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: https://www.rc.futaba.co.jp/support/manual/